PRIME SENSE LTD

PRIME SENSE LTD Patent applications

Patent application number

Title

Published

20110164032

Three-Dimensional User Interface - Methods and systems for interfacing a computer system are provided, which include capturing three-dimensional image maps over time of at least a part of a control element such as the body of a human subject, generating a three-dimensional representation of scene elements by driving a three-dimensional display with a second sequence of three-dimensional maps of scene elements. The two sequences of maps are correlated to detect a direction and speed of movement of the part of the body with respect to the scene elements. A relationship of the direction and speed of movement to at least one of the scene elements is established. A computer application is controlled according to the relationship that is established.

07-07-2011

20110096182

Error Compensation in Three-Dimensional Mapping - A method for forming a three-dimensional (3D) map of an object, including illuminating the object from a light source so as to project a pattern onto the object, capturing an image of the pattern using an array of detector elements, and processing the captured image so as to measure respective offsets of elements of the pattern in the captured image relative to a reference pattern, the offsets including at least a first offset of a first element of the pattern and a second offset of a second element of the pattern, measured respectively in first and second, mutually-perpendicular directions in a plane of the array. The method further includes computing a correction factor in response to the first offset, applying the correction factor to the second offset so as to find a corrected offset, and computing depth coordinates of the object in response to the corrected offset.

REFERENCE IMAGE TECHNIQUES FOR THREE-DIMENSIONAL SENSING - A method including providing a device that projects a pattern of coherent radiation. The method further includes capturing a reference image of the pattern using an image sensor by projecting the pattern of the coherent radiation onto a reference surface and engendering a relative motion between the reference surface and the image sensor while capturing the reference image. The method also includes storing the reference image in a memory associated with the device.

09-09-2010

20100201811

DEPTH RANGING WITH MOIRE PATTERNS - A method for three-dimensional mapping of an object, including projecting with a projector a set of fringes on the object and capturing an image of the object in a camera. The method further includes processing the captured image so as to detect a Moiré pattern associated with the object and so as to extract depth information from the Moiré pattern, and configuring the projector and the camera so that a locally unambiguous characteristic of the Moiré pattern is related to a depth of the object.

INTEGRATED PROCESSOR FOR 3D MAPPING - A device for processing data includes a first input port for receiving color image data from a first image sensor and a second input port for receiving depth-related image data from a second image sensor. Processing circuitry generates a depth map using the depth-related image data. At least one output port conveys the depth map and the color image data to a host computer.

01-14-2010

20090185274

OPTICAL DESIGNS FOR ZERO ORDER REDUCTION - Apparatus for projecting a pattern includes a first diffractive optical element (DOE) configured to diffract an input beam so as to generate a first diffraction pattern on a first region of a surface, the first diffraction pattern including a zero order beam. A second DOE is configured to diffract the zero order beam so as to generate a second diffraction pattern on a second region of the surface such that the first and the second regions together at least partially cover the surface.